Following the success of Ranz's prior film; The Devil's Vengeance, at the 2021 OCSA FTV Back To School Film Festival. It was revealed that Ranz was distraught at the audiences' amused reactions to the production he intended to frighten audiences. In spite of their reactions, he began writing and filming Elrom.
Elrom was filmed exclusively with an iPhone 6. The film was then edited on a free trial edition of Final Cut Pro.